A small oil sample rapid collector

Abstract

The utility model relates to oil product sampling device technical field, concretely is a kind of small oil product sample rapid collector, the problem proposed in background art is solved, it includes main body shell, its inside forms a accommodating cavity;Disposable sample bin disposable sample bin is pre-evacuated airtight container, its import end is equipped with sealing washer;Quick connector is fixedly set in the front end of main body shell;Puncture needle is fixedly set in the top of accommodating cavity, its needle tip is downward, and is communicated with the flow passage of quick connector by oil guide pipe;Sliding plate is slidably set in the bottom of accommodating cavity, its sealing washer and the needle tip of puncture needle are up and down opposite;Spring is arranged between the bottom of accommodating cavity and the lower surface of sliding plate.The utility model, by the ingenious cooperation of pre-evacuated disposable sample bin and built-in puncture needle, sealing puncture is completed instantaneously using pressing push rod, and oil sample is automatically inhaled relying on negative pressure, realizes the full-closed operation of sampling process.

Description

Technical Field

[0001] This utility model relates to the technical field of oil sampling devices, specifically a small-sized rapid oil sample collector. Background Technology

[0002] In the petroleum, chemical, and shipping industries, it is often necessary to extract oil samples from storage tanks, oil containers, or oil pipelines for quality analysis. Traditional sampling methods often use tools such as glass bottles or sampling ropes, which have problems such as cumbersome operation, slow sampling speed, easy sample contamination, and potential safety hazards due to oil leakage.

[0003] While some portable samplers exist in the existing technology, their structures are complex, they still require operator contact with the oil, or they are ineffective in preventing leaks and cross-contamination. Therefore, there is an urgent need for a miniaturized device that can achieve rapid, safe, and pollution-free sampling. Utility Model Content

[0004] To address the above problems, this utility model provides the following technical solution: a small-scale rapid oil sample collector, comprising:

[0005] The main body shell has an internal cavity.

[0006] A disposable sample chamber, which is a pre-vacuumed sealed container with a sealing gasket at its inlet end;

[0007] A quick connector is fixedly mounted on the front end of the main body shell;

[0008] A puncture needle is fixedly installed at the top of the accommodating cavity with its tip pointing downwards, and is connected to the flow channel of the quick connector through an oil guide tube;

[0009] A sliding plate is slidably disposed at the bottom of the accommodating cavity, the inlet end of the disposable sample chamber passes through and is fixed to the sliding plate, and its sealing gasket is vertically opposite to the tip of the puncture needle;

[0010] A spring is disposed between the bottom of the accommodating cavity and the lower surface of the sliding plate to provide an upward supporting force to the sliding plate;

[0011] as well as,

[0012] A push rod is movably mounted on the top of the main body shell, with its lower end contacting the bottom of the disposable sample chamber or the sliding plate;

[0013] Pressing the push rod can drive the sliding plate to compress the spring and move downward, thereby causing the disposable sample chamber to move downward, so that the sealing gasket is punctured by the puncture needle to establish an oil inlet passage.

[0014] Preferably, at least two spring seats are symmetrically arranged at the bottom of the accommodating cavity, and the springs are correspondingly arranged in the spring seats.

[0015] Preferably, a guide structure is provided between the sliding plate and the inner wall of the accommodating cavity. The guide structure is a guide groove provided on the inner wall of the accommodating cavity and a guide protrusion provided on the side of the sliding plate, or a sliding rail and a sliding groove that cooperate with each other.

[0016] Preferably, the inlet end of the disposable sample chamber is fixed to the center hole of the sliding plate by means of a snap-fit ​​connection or interference fit.

[0017] Preferably, the lower end of the push rod is provided with a buffer pad, which is made of rubber or silicone material.

[0018] Preferably, the quick connector is equipped with a one-way valve inside.

[0019] Preferably, the disposable sample chamber is made of a transparent or translucent material, and its outer wall is provided with volume markings.

[0020] Preferably, it also includes a safety latch for locking the push rod in the depressed position.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] By cleverly combining a pre-vacuumed disposable sample chamber with a built-in puncture needle, the oil sample can be instantly sealed and punctured by pressing the push rod and automatically drawn in by negative pressure. This achieves a fully enclosed sampling process, effectively avoiding oil volatilization, oxidation, and cross-contamination, and improving the convenience, safety, and accuracy of sampling. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model.

[0025] In the diagram: 1. Main body shell; 11. Spring seat; 12. Guide groove; 2. Disposable sample chamber; 21. Sealing gasket; 22. Volume scale; 3. Quick connector; 31. One-way valve; 4. Puncture needle; 5. Oil guide tube; 6. Sliding plate; 61. Guide protrusion; 7. Spring; 8. Push rod; 81. Buffer pad; 9. Safety lock. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1 As shown, the small-scale rapid oil sample collector of this embodiment includes:

[0028] The main body shell 1 has an internal cavity;

[0029] Disposable sample chamber 2 is a pre-vacuumed sealed container with a sealing gasket 21 at its inlet end;

[0030] The quick connector 3 is fixedly mounted on the front end of the main body shell 1;

[0031] The puncture needle 4 is fixedly installed at the top of the accommodating cavity with its tip pointing downwards, and is connected to the flow channel of the quick connector 3 through the oil guide tube 5;

[0032] The sliding plate 6 is slidably disposed at the bottom of the accommodating cavity. The inlet end of the disposable sample chamber 2 passes through and is fixed on the sliding plate 6, and its sealing gasket 21 is vertically opposite to the tip of the puncture needle 4.

[0033] Spring 7 is disposed between the bottom of the accommodating cavity and the lower surface of the sliding plate 6, and is used to provide an upward supporting force to the sliding plate 6;

[0034] as well as,

[0035] The push rod 8 is movably mounted on the top of the main body shell 1, and its lower end contacts the bottom of the disposable sample chamber 2 or the sliding plate 6;

[0036] The push rod 8 can drive the sliding plate 6 to compress the spring 7 and move downward, thereby causing the disposable sample chamber 2 to move downward, so that the sealing gasket 21 is punctured by the puncture needle 4 to establish an oil inlet passage.

[0037] At least two spring seats 11 are symmetrically arranged at the bottom of the accommodating cavity, and springs 7 are correspondingly arranged in the spring seats 11.

[0038] A guide structure is provided between the sliding plate 6 and the inner wall of the accommodating cavity. The guide structure is a guide groove 12 provided on the inner wall of the accommodating cavity and a guide protrusion 61 provided on the side of the sliding plate 6, or a slide rail and a slide groove that cooperate with each other.

[0039] The inlet end of the disposable sample chamber 2 is fixed to the center hole of the sliding plate 6 by means of snap-fit ​​connection or interference fit.

[0040] The lower end of the push rod 8 is provided with a buffer pad 81, which is made of rubber or silicone material.

[0041] The quick connector 3 has a one-way valve 31 inside.

[0042] The disposable sample chamber 2 is made of transparent or semi-transparent material, and its outer wall is provided with volume scale 22.

[0043] It also includes a safety latch 9 for locking the push rod 8 in the depressed position.

[0044] The working principle of this utility model is as follows:

[0045] Before sampling, the pre-vacuumed disposable sample chamber 2 is in the upper position supported by spring 7, with its sealing gasket 21 separated from the tip of the puncture needle 4. When the operator connects the quick connector 3 to the oil circuit to be sampled, the push rod 8 is pressed down. The push rod 8 transmits force to the sliding plate 6 through the buffer pad 81. The sliding plate 6 overcomes the elastic force of spring 7 and moves downward smoothly, causing the fixed disposable sample chamber 2 to move downward synchronously, so that the sealing gasket 21 is punctured by the stationary puncture needle 4. The safety lock 9 restricts the sliding amount of the push rod 8. At the moment of puncture, the vacuum inside the sample chamber and the oil circuit pressure form a strong pressure difference. Under the action of the pressure difference, the oil is automatically and quickly drawn into the disposable sample chamber 2 through the quick connector 3 and its internal one-way valve 31, oil guide pipe 5 and the internal channel of the puncture needle 4. The operator can observe the sample volume through the volume scale 22 on the chamber wall. Sampling is completed, realizing rapid, quantitative and fully sealed sample collection.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A small oil sample fast collector, characterized in that, include: The main body shell (1) has an internal cavity; Disposable sample chamber (2), wherein the disposable sample chamber (2) is a pre-vacuumed sealed container with a sealing gasket (21) at its inlet end; A quick connector (3) is fixedly mounted on the front end of the main body shell (1); The puncture needle (4) is fixedly installed at the top of the accommodating cavity with its tip pointing downwards, and is connected to the flow channel of the quick connector (3) through the oil guide tube (5); A sliding plate (6) is slidably disposed at the bottom of the accommodating cavity. The inlet end of the disposable sample chamber (2) passes through and is fixed on the sliding plate (6), and its sealing gasket (21) is vertically opposite to the tip of the puncture needle (4). A spring (7) is disposed between the bottom of the accommodating cavity and the lower surface of the sliding plate (6) for providing an upward supporting force to the sliding plate (6); as well as, The push rod (8) is movably disposed on the top of the main body shell (1), and its lower end is in contact with the bottom of the disposable sample chamber (2) or the sliding plate (6); Pressing the push rod (8) can drive the sliding plate (6) to compress the spring (7) and move downward, thereby driving the disposable sample chamber (2) to move downward, so that the sealing gasket (21) is punctured by the puncture needle (4) to establish an oil inlet passage.

2. A small-sized oil sample rapid collector according to claim 1, characterized in that: At least two spring seats (11) are symmetrically arranged at the bottom of the accommodating cavity, and the spring (7) is correspondingly arranged in the spring seat (11).

3. A small-sized oil sample rapid collector according to claim 1, characterized in that: A guide structure is provided between the sliding plate (6) and the inner wall of the accommodating cavity. The guide structure is a guide groove (12) provided on the inner wall of the accommodating cavity and a guide protrusion (61) provided on the side of the sliding plate (6), or a slide rail and a slide groove that cooperate with each other.

4. The small-sized oil sample rapid collector according to claim 1, characterized in that: The inlet end of the disposable sample chamber (2) is fixed to the center hole of the sliding plate (6) by means of snap-fit ​​connection or interference fit.

5. The small-sized oil sample rapid collector according to claim 1, characterized in that: The lower end of the push rod (8) is provided with a buffer pad (81), which is made of rubber or silicone material.

6. The small-scale rapid oil sample collector according to claim 1, characterized in that: The quick connector (3) is equipped with a one-way valve (31).

7. The small-sized oil sample rapid collector according to claim 1, characterized in that: The disposable sample chamber (2) is made of transparent or semi-transparent material and has volume markings (22) on its outer wall.

8. The small-sized oil sample rapid collector according to claim 1, characterized in that: It also includes a safety latch (9) for locking the push rod (8) in the pressed position.

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